teach_flow = 
	[
	 {
		 tip:"打开药品库",
		 tag:TAG_BUTTON_LIB,
		 create:[],
		 destroy:[],
//		 node:true,
//		 nodeName:"配置粗盐溶液"
	 },
	 {
		 tip:"取出一张滤纸",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_FILTER
		      ]
	 },
	 {
		 tip:"取出铁粉试剂瓶和药匙",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_FE
		      ]
	 },
	 {
		 tip:"用药匙取适量铁粉，放置滤纸上",
		 tag:[
		      TAG_FE,
		      TAG_FE_SPOON
		      ]
	 },
	 {
		 tip:"取出硫粉试剂瓶和药匙",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_S
		      ]
	 },
	 {
		 tip:"用药匙取适量硫粉，放置滤纸上，并搅拌均匀",
		 tag:[
		      TAG_SS,
		      TAG_SS_SPOON
		      ]
	 },
	 {
		 tip:"在药品库中取出磁铁",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_MAGNET
		      ]
	 },
	 {
		 tip:"在药品库中取出药匙,将磁铁上的铁粉刮回滤纸上",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_SPOON
		      ],action:ACTION_DO1
	 },
	 {
		 tip:"在药品库中取出铁架台",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_SHELF
		      ]
	 },
	 {
		 tip:"在药品库中取出纸槽",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_SLOT
		      ]
	 },
	 {
		 tip:"在药品库中取出药匙，将混合物转移至纸槽",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_SPOON
		      ]
	 },
	 {
		 tip:"在药品库中取出试管",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_TESTTUBE
		      ]
	 },
	 {
		 tip:"将纸槽中的混合物放进试管中",
		 tag:[
		      TAG_PAPERSLOT,
		      TAG_SLOT
		      ]
	 },
	 {
		 tip:"将试管夹在铁架台上",
		 tag:[
		      TAG_TUBE,
		      TAG_TESTTUBE
		      ],action:ACTION_DO1
	 },
	 {
		 tip:"在药品库中取出小木块",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_WOOD
		      ]
	 },
	 {
		 tip:"在药品库中取出酒精灯和火柴",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_LAMP
		      ]
	 },
	 {
		 tip:"打开灯帽",
		 tag:[	     
		      TAG_LAMP,
		      TAG_DENGMAO
		      ]
	 },
	 {
		 tip:"用火柴点燃酒精灯",
		 tag:[	     
		      TAG_LAMP,
		      TAG_HUOCHAI
		      ]
	 },
	 {
		 tip:"用酒精灯对试管底预热",
		 tag:[	     
		      TAG_LAMP,
		      TAG_JIUJINGDENG
		      ],action:ACTION_DO1
	 },
	 {
		 tip:"取下酒精灯，并熄灭",
		 tag:[	     
		      TAG_LAMP,
		      TAG_JIUJINGDENG
		      ],action:ACTION_DO2
	 },
	 {
		 tip:"取出一张滤纸",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_FILTER2
		      ]
	 },
	 {
		 tip:"取出冷却后的试管，将管内的生成物倒至滤纸上",
		 tag:[
		      TAG_TUBE,
		      TAG_TESTTUBE
		      ],action:ACTION_DO2,X:0,Y:0
	 },
	 {
		 tip:"在药品库取出磁铁",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_MAGNET2
		      ]
	 },
	 {
		 tip:"恭喜过关",
		 over:true
	 }
	 ]